Home / 20,087.88-30,122.10-6,935.64

Finding the Fourth Proportional to 20,087.88, 30,122.10 and 6,935.64

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Solution

The fourth proportional to 20,087.88, 30,122.10 and 6,935.64 is: 10,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.88 : 30,122.10 = 6,935.64 : x
  2. Step 2: Convert to fraction form
    20,087.88/30,122.10 = 6,935.64/x
  3. Step 3: Cross multiply
    20,087.88x = 30,122.10 × 6,935.64
  4. Step 4: Simplify right side
    20,087.88x = 208,916,041.64
  5. Step 5: Solve for x
    x = 208,916,041.64/20,087.88
  6. Step 6: Final answer
    x = 10,400.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.